Abstract: Objective To investigate the incidence of unilateral spatial neglect(USN)after brain injury in different area with varied test,and to survey their sensitivity.Methods 196 patients after brain injury were assessed with varied test to identify USN.Results The total incidence of USN was 41.33%,which was the highest in the patients with parietal lobe lesion and less in the boundary of tempo-parietal-occipital lobe,the temporal lobe and basal ganglion injury in turn.The sensitivity of the Albert test was the highest,which was less of Shenckenberg test,letter-figure-cancellation test,copying drawing test,clock-drawing test and character test in turn.However,the sensitivity of Albert test was the highest in the patients with frontal lobe lesion,and that of Shenckenberg test was the highest when the temporal,parietal lobe or the boundary of tempo-parietal-occipital lobe injured.Conclusion The incidence of USN was high after brain injury.It is important to choose the test tool according to the area of the focus.

Key words: brain injury, unilateral spatial neglect, incidence, assessment